Shanghai is 13 hours ahead of Boston (EST) or 12 hours ahead (EDT). When it's 8:00 AM in Boston, it's 9:00 PM in Shanghai. China does not observe DST.
Boston uses ET (Eastern Time) while Shanghai uses CST (China Standard Time).
Optimal window: 7:00 PM - 10:00 PM Boston time (8:00 AM - 11:00 AM Shanghai next day). Evening calls from Boston reach morning business hours in Shanghai.
Boston universities and financial institutions have significant partnerships in Shanghai.